The Best Attacks From the Las Vegas GOP Debate

— -- Before Tuesday's Republican debate began, the cameras showed the candidates backstage, cordially shaking hands. But once they walked on to that debate stage, the chumminess ended.

Donald Trump and Jeb Bush went back-and-forth, attacking each other seven times. During the debate, Bush called Trump a "chaos candidate. And he'd be a chaos president." Trump hit back, saying Bush "has failed in this campaign. It's been a total disaster."

Marco Rubio faced criticism from Rand Paul and Ted Cruz -- and Rubio gave it right back.

Paul brought up "Bridgegate" -- a scandal in which aides in Chris Christie's office ordered the shutdown of access lanes to the George Washington Bridge in 201 -- as a way to discredit the New Jersey governor.

See who attacked whom at Tuesday's night Republican debate in Las Vegas:

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